Four Seasons A/C Receiver Drier 33993
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Four Seasons A/C Receiver Drier P/N:33993

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$51.99
MPN: 33993
Item Package Quantity: 1
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Four Seasons A/C Receiver Drier P/N:33993
Four Seasons A/C Receiver Drier P/N:33993
$51.99

Keep the air conditioning refrigerant clean and dry with the Four Seasons A/C Receiver Drier / Filter Drier 33993, a steel filter drier that installs as a direct-fit replacement across the 1997-2000 Peterbilt 200, 320, 330, 357, 362, 377, 378, 379 and 385, the 1997 Peterbilt 372, the 1999 Peterbilt 376 and 397, and the 2000 Peterbilt 387. See the Buyer's Guide tab for the full application list.

The filter drier acts as a filter, removing moisture and contaminants from the A/C system that cannot be cleared by flushing — which is why it is replaced rather than cleaned.

  • Steel construction: built with quality welds for a durable, leak-free design.
  • High-quality desiccant: a desiccant bag absorbs moisture for appropriate absorption within the system.
  • Filters the system: removes moisture and contaminants that flushing leaves behind.
  • Install-ready: the necessary gaskets, O-rings and seal are included.

A leaking or "open" system can saturate the desiccant bag within a few hours, so replacement is recommended any time the system is serviced, and Four Seasons notes replacing the drier is required to validate the compressor warranty.

Interchange: 936036 · T33993 · 708309 · 8254124 · 7180 · A1802 · 3713718 · 3713718AM · 08834000 · 08834001 · 2314233 · 171007 · ARD1207 · 071408A · RD10045C

This part cross-references / interchanges with the following part numbers:

936036, T33993, 708309, 33993, 8254124, 7180, A1802, 3713718, 3713718AM, 08834000, 08834001, 2314233, 171007, ARD1207, 071408A, RD10045C

Frequently Asked Questions

What does this receiver drier / filter drier do?

It acts as a filter, removing moisture and contaminants from the A/C system, while its desiccant bag absorbs moisture. These contaminants cannot be removed by flushing, so the unit is replaced instead.

Which vehicles does the Four Seasons 33993 fit?

It fits 1997-2000 Peterbilt 200, 320, 330, 357, 362, 377, 378, 379 and 385, the 1997 Peterbilt 372, the 1999 Peterbilt 376 and 397, and the 2000 Peterbilt 387. See the Buyer's Guide tab for the full list.

Are seals included with this filter drier?

Yes. Four Seasons includes the necessary gaskets, O-rings and seal for installation.

Why should I replace the drier when servicing the A/C system?

A leaking or open system can saturate the desiccant bag within hours, making the drier ineffective. Four Seasons also notes replacement is required to validate the compressor warranty.

What is this filter drier made of?

It is a steel filter drier assembled with quality welds for a durable, leak-free design, and it uses a high-quality desiccant for moisture absorption.

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